Storm lantern



Jan. 11, 1938. B N|ER 2,105,432

STORM LANTERN Filed June 5, 1936 Patented Jan. 11, 1938 1 UNITED STATES T OFFKIE Application June 5, 1936, Serial No. 83,749 In Germany June 6, 1935 Claims.

It is known, that storm lanterns of normal construction, more particularly those with a reduced combustion space per Hefner candle power, even if they function satisfactorily at the outside 5 temperatures prevailing in a temperate climate,

will fail when used in hot regions.

The applicant has found, that this disadvantage may be overcome, if the wick sheath be made of a material which is a good heat conductor, more particularly of copper. In this way storm lanterns can be produced, which burn in a satisfactory manner independently of the outside temperature. The manufacture of the wick sheath from copper and similar materials entails a certain increase in the cost of the lantern and the applicant has therefore sought, while using the usual materials, more particularly tinned sheet iron, for the wick sheath as well, to produce storm lanterns which will burn satisfactorily in all circumstances. It has been found that the so-called flame plate of the storm lantern burner, which in the known constructions is connected to the wick sheath, transmits the heat developed, when the lantern is burning, to the wick sheath itself and is thus the cause of the lanterns no longer burning in a satisfactory manner at higher outside temperatures.

It was found, that the observed disadvantages disappear, when the flame plate is quite unconnected with the wick sheath and between the inner edge of the flame plate and the upper end of the wick sheath an air gap of sufiicient size is provided, by which the heat transmission from the flame plate to the wick sheath is prevented.

For this reason according to the invention the flame plate is completely insulated from the upper edge of the wick sheath and is connected with some other part of the burner or some other part of the wick sheath, preferably with the lower part of the burner, and in some way held securely in this position.

The intermediate air space between the inner edge of the flame plate and the upper end of the wick sheath, may according to a further modification of the invention be replaced by an intermediate piece of heat-insulating material, which separates the flame plate from the wick sheath and establishes its connection with the wick sheath.

Finally it is also possible to make the flame plate entirely of heat insulating material, thereby also effectively preventing the transmission of heat from the flame plate back to the wick sheath.

In the accompanying drawing constructional forms of the invention are illustrated by way of example,

Fig. 1 is a longitudinal sectional view showing one side of the burner;

Fig. 2 is a sectional view taken at a right angle to Fig. 1;

Fig. 3 is a top plan view of wick sheath and burner plate shown in Fig. 1;

Fig. 4 shows a burner with a flame plate of insulating material;

Fig. 5 is a sectional view through the wick sheath and flame plate shown in Fig. 4;

Fig. 6 is a top plan view of Fig. 5;

Fig. 7 is a section through the wick sheath and flame plate of a third embodiment;

Fig. 8 is a top plan view of Fig. 7.

The burner consists of the lower burner part I the burner cap 2, and the wick sheath 3, which are formed in the usual manner. 4 is the flame plate. This plate is no longer directly connected in contacting relation in the known manner with the upper part of the wick sheath 3, but is fixed by the bridge pieces 5 to a lower part of the burner. In this way there is formed between the upper end of the wick sheath 3 and the flame plate 3 an air space 6, by which the direct heat transmission from the flame plate to the wick sheath and vice versa is prevented.

In the constructional form of Figs. 4 to 6 the flame plate 4 is made of heat insulating material. Material of this kind of the most varied sort in pressed or rolled form, such as asbestos, asbestos mixed with artificial resin, fibre or the like, may be used.

In the constructional form shown in Figs. 7 and 8 the flame plate 4 made of metal is separated from the wick sheath by an intermediate ring 'I of insulating material, and by these means as well transmission of the heat from the flame plate 4" back to the wick sheath 3 is prevented to a suflicient degree.

The connection between the parts 4 and 3 may be established in any suitable manner, for instance by beading, folding or the like. This forms no part of the invention, for which it is only essential that transmission of the heat from the flame plate back to the wick sheath and the consequent disturbances, when the storm lantern is burning are eliminated.

Experiments have shown that a lantern constructed in this way will burn absolutely satisfactorily at all outside temperatures in which a lantern might be used. It is therefore no longer necessary to make the wick sheath of copper, and the entire burner may be made in the usual 55 way of sheet iron and the entire lantern may be made of sheet iron.

What I claim is:-

1. A storm lantern burner comprising in combination a burner cap, a Wick sheath disposed within the burner cap, a flame plate mounted so as to surround the wick sheath at a point substantially flush with the upper edge thereof and means for heat-insulating the flame plate from the wick sheath.

2. A storm lantern burner comprising in combination a burner cap, a wick sheath disposed within the burner cap and. a flame plate mounted so as to surround the wick sheath with an air gap between the two. v

3. A storm lantern burner comprising in combination a burner cap, a wick sheath disposed within the burner cap, a flame plate surrounding the wick sheath with an air gap and bridge pieces for connecting the flame plate with the lower part of the burner and for maintaining the flame plate in substantially the plane of the upper edge of the sheath.

4. A storm lantern burner comprising in combination a burner cap, a wick sheath disposed within the burner cap, a metallic flame plate surrounding the wick sheath and a ring-shaped wall of insulating material interposed between the flame plate and the wick sheath forfixing the flame plate to the wick sheath.

5. A storm lantern burner comprising in combination a burner cap, a wick sheath disposed within the burner cap and a flame plate of heat insulating material mounted on the wick sheath.

7 BRUNO NIER. 

